[FIX] calendar: Allow any user to set calendar_last_notif_ack
[FIX] calendar: Allow any user to set calendar_last_notif_ack

Fixes https://github.com/odoo/odoo/issues/39358
Before this commit Internal user (With no other Rights) cannot perform any activity on Reminder Popup due to missing rights to set calendar_last_notif_ack field.
With this fix, we are now using sudo to write calendar_last_notif_ack

closes odoo/odoo#40104

X-original-commit: 91560fae56f1cba09141eefa1d0da03f4a7b3f72
Signed-off-by: Nicolas Martinelli (nim) <771435c469f83f6aa9c405ac5e1ed06314a94f2d@odoo.com>

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